Heat K&N's Seekh Kababs as per instructions on pack and set aside.
Heat oil in a wok and sauté onions and garlic for 3 minutes.
Add mustard and cook for 3-4 minutes, stirring occasionally.
Mix in cream and let simmer for about half a minute.
Add butter and mix until it melts and blends in to the gravy.
Cook till it simmers.
Dish out the Creamy Mustard gravy.
Gently lay heated Seekh Kababs over gravy and serve with flatbread.